# @Version : 1.0
# @Author  : 刘宇
# @File    : 08_if_exercise05.py
# @Time    : 2025/10/7 16:06

year = int(input("请输入年份:"))
if year % 4 == 0 and year % 100 != 0 or year % 400 == 0:
    print(f"{year}是闰年")
else:
    print(f"{year}不是闰年")
